package collection;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

public class GenericDemo {
    public static void main(String[] args) {
        Collection<Point> c = new ArrayList<>();
        c.add(new Point(1,2));
        c.add(new Point(3,4));
        c.add(new Point(5,6));
        c.add(new Point(7,8));
        Iterator<Point> it = c.iterator();
        while (it.hasNext()){
            Point p = it.next();
            System.out.println(p);
        }

        for (Point p: c){
            System.out.println(p);
        }

//        Collection<String> c = new ArrayList<>();
//        c.add("one");
//        c.add("two");
//        c.add("three");
//        c.add("four");
//        c.add("five");
//
//        Iterator<String> it = c.iterator();
//        while (it.hasNext()){
//            String str = it.next();
//            System.out.println(str);
//        }
//        for (String str: c){
//            System.out.println(str);
//        }
    }
}
